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/*

 * Copyright (C) 2020-2022 Huawei Technologies Co., Ltd. All rights reserved.

 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.huaweicloud.hessian;

import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Type;

import org.apache.dubbo.common.serialize.Cleanable;
import org.apache.dubbo.common.serialize.ObjectInput;
import org.apache.dubbo.common.serialize.hessian2.Hessian2SerializerFactory;

import com.alibaba.com.caucho.hessian.io.Hessian2Input;

/**
 * Hessian2 object input implementation. This file is based on original Dubbo implementation.
 * This purpose is to support non-serializable model
 */
public class Hessian2ObjectInput implements ObjectInput, Cleanable {

  private static ThreadLocal INPUT_TL = ThreadLocal.withInitial(() -> {
    Hessian2Input h2i = new Hessian2Input(null);
    Hessian2SerializerFactory factory = new Hessian2SerializerFactory();
    factory.setAllowNonSerializable(true);
    h2i.setSerializerFactory(factory);
    h2i.setCloseStreamOnClose(true);
    return h2i;
  });

  private final Hessian2Input mH2i;

  public Hessian2ObjectInput(InputStream is) {
    mH2i = INPUT_TL.get();
    mH2i.init(is);
  }

  @Override
  public boolean readBool() throws IOException {
    return mH2i.readBoolean();
  }

  @Override
  public byte readByte() throws IOException {
    return (byte) mH2i.readInt();
  }

  @Override
  public short readShort() throws IOException {
    return (short) mH2i.readInt();
  }

  @Override
  public int readInt() throws IOException {
    return mH2i.readInt();
  }

  @Override
  public long readLong() throws IOException {
    return mH2i.readLong();
  }

  @Override
  public float readFloat() throws IOException {
    return (float) mH2i.readDouble();
  }

  @Override
  public double readDouble() throws IOException {
    return mH2i.readDouble();
  }

  @Override
  public byte[] readBytes() throws IOException {
    return mH2i.readBytes();
  }

  @Override
  public String readUTF() throws IOException {
    return mH2i.readString();
  }

  @Override
  @Deprecated
  public Object readObject() throws IOException {
    return mH2i.readObject();
  }

  @Override
  @SuppressWarnings("unchecked")
  public  T readObject(Class cls) throws IOException,
      ClassNotFoundException {
    return (T) mH2i.readObject(cls);
  }

  @Override
  public  T readObject(Class cls, Type type) throws IOException, ClassNotFoundException {
    return readObject(cls);
  }

  public InputStream readInputStream() throws IOException {
    return mH2i.readInputStream();
  }

  @Override
  public void cleanup() {
    if (mH2i != null) {
      mH2i.reset();
    }
  }
}